Spectral feature
|
Calcite
|
Opal
|
Smectite
|
Illite
|
Constant
|
Correlation
coefficient |
---|---|---|---|---|---|---|
Four-mineral numbers: |
|
|
|
|
|
|
1900-nm trough depth |
|
0.2089 | 0.3017 |
|
0.0659 | 0.875 |
1400-nm trough depth | -0.0924 |
|
|
-0.0478 | 0.0947 | 0.792 |
2330-nm trough depth relative to the 2260-nm peak |
|
-0.0719 | 0.0252 |
|
0.0444 | 0.663 |
2330-nm trough depth relative to the 2100-nm peak |
|
|
0.1166 | 0.0395 | 0.1005 | 0.711 |
1400-nm trough-1900-nm trough |
|
0.2088 | 0.1202 |
|
0.0426 | 0.869 |
2100-nm peak-1850-nm peak |
|
-0.0749 |
|
|
0.0472 | 0.657 |
2315-nm peak-2330-nm trough | 0.0231 |
|
0.0567 | 0.0489 | -0.0135 | 0.825 |
Average reflectance | 0.4543 | 0.3812 |
|
|
0.3819 | 0.916 |
Three-mineral numbers: |
|
|
|
|
|
|
1900-nm trough depth | -0.2241 |
|
0.0912 |
|
0.2783 | 0.865 |
1400-nm trough depth | -0.1023 |
|
-0.0149 |
|
0.1032 | 0.793 |
2330-nm trough depth relative to the 2260-nm peak | -0.0272 | -0.0967 |
|
|
0.0697 | 0.660 |
2330-nm trough depth relative to the 2100-nm peak |
|
|
0.1167 |
|
0.1004 | 0.712 |
1400-nm trough-1900-nm trough | -0.2049 |
|
-0.0877 |
|
0.2502 | 0.839 |
2100-nm peak-1850-nm peak |
|
-0.0768 |
|
|
0.0481 | 0.651 |
2315-nm peak-2330-nm trough | 0.0231 |
|
0.0567 |
|
-0.0135 | 0.798 |
Average reflectance | 0.0858 |
|
-0.3515 |
|
0.7501 | 0.890 |